Our friend and colleague Jean-Claude Sikorav will turn 60 in 2017. The occasion will be celebrated in an international conference on symplectic geometry at University Claude Bernard in Lyon, with special emphasis on topics that Jean-Claude contributed to, in particular: Generating functions, Topology of Lagrangian submanifolds, Automatic transversality for holomorphic curves.

The study of Hamiltonian dynamical systems plays a fundamental role in many different contexts, both in pure and applied mathematics. Indeed, most of the physical laws ruling our everyday lives --the motion of the celestial bodies in the universe, the geodesic flow on a manifold, a large set of mechanical systems-- they all share a common feature consisting in what is called a ''Hamiltonian structure''.
Recent advances in the study of Hamiltonian systems have been made possible thanks to a fruitful interaction between diverse ideas and techniques coming from dynamical systems, nonlinear analysis, PDE theory and symplectic topology.
The School aims at outlining these interactions, and consist of four courses (6 hours each) lectured by well-known experts in the field.